CBSE Class 8 Answered
sir/mam can u explain me nitrogen cycle......sorry to say but i want this answer as soon as possible... thank u
Asked by Sudhir Shukla | 14 Sep, 2014, 01:57: PM
Expert Answer
The various processes in nitrogen cycle are-
(i)Fixation - It is the first step in the process of making nitrogen usable by plants. Here bacteria change nitrogen into ammonium.
(ii)Nitrification - This is the process by which ammonium gets changed into nitrates by bacteria.
(iii)Assimilation - This is how plants get nitrogen. They absorb nitrates from the soil into their roots. Then the nitrogen gets used in amino acids, nucleic acids, and chlorophyll.
(iv)Ammonification - It is the decaying process. When a plant or animal dies, decomposers like fungi and bacteria turn the nitrogen back into ammonium so it can reenter the nitrogen cycle.
(v)Denitrification - The denitrifying bacteria break down nitrates and return nitrogen in the air.
Answered by Sivanand Patnaik | 14 Sep, 2014, 03:17: PM
Application Videos
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Role of Microbes in Nitrogen Fixation
This video explains the useful role of microbes in the process of nitrogen ... -
Role of Microbes in Nitrogen Fixation
This video explains the nitrogen cycle in the process of nitrogen fixation.
Concept Videos
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Microorganisms
Steps involved in nitrogen cycle
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